MasterLine 10
Next-generation performance. Best-in-class insulation.


Technical Specifications
Frame Depth
3.82" (97 mm)
U-Factor (best)
0.14 (Uw 0.78, HI+)
Uf (frame)
0.94-0.99 W/m2K
Max Glazing
3.46" (88 mm) - Functional
Air Infiltration
Class 4 (EN 12207)
Water Resistance
E900 / C5 wind (Hidden Vent)
Max Sash Height
9' 2" (2,800 mm)
Max Sash Weight
441 lbs (200 kg) window / 551 lbs (250 kg) door
Acoustics
Up to 47 dB (Hidden Vent)
Variants
Functional, Hidden Vent, Deco, Renaissance
Overview
What makes the MasterLine 10
stand out.
MasterLine 10 pushes the boundaries of what aluminum windows can achieve. XPS foam insulation (0.029 W/mK) and polyamide thermal separation deliver a frame Uf of 0.94-0.99 W/m2K - the best in any Reynaers system. Four design variants (Functional, Hidden Vent, Deco, Renaissance), with the Hidden Vent achieving an 87 mm sightline where operable windows look identical to fixed panes from outside. PHI certified (phC class) with triple glazing 4/18/4/18/4.
Key Highlights
- Best Uf in any Reynaers system: 0.94 W/m2K (Hidden Vent)
- Hidden Vent: 87 mm sightline, operable looks fixed from outside
- XPS foam + polyamide thermal separation technology
- Max glazing 88 mm - accommodates quad-pane units
- PHI certified (phC class) for passive house projects
- Doors: 1M cycle durability, 250 kg max weight, 3,000 mm height
Ideal For
Ultra-low-energy residential builds, Passive House and LEED-certified projects, and high-end architect-driven homes where you need the absolute best thermal performance from an aluminum frame.
Consider an Alternative When
If your energy targets are met by a 0.14 U-factor, the MasterLine 8 gives you the same Reynaers quality at a lower price and supports heavier sashes. For a more budget-friendly option at similar performance, consider the Aluprof MB-86 SI+.
Related Systems
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Interested in the MasterLine 10?
Send me your window schedule and I'll price MasterLine 10 units for your project - full spec, DDP to your job site, within 48 hours.